B Efficiency Power Supplies
Browse 231 B efficiency units with full specs.
Search through power supply units by various criteria including brand, wattage, tier, topology, ODM, and more
Showing 75 of 231 entries in B efficiency
↪ Notes: 5 year warranty, OCP is set way higher than necessary on the minor rails.
↪ Notes: Although OCP is set reasonably (118% on 12V), the platform is at its limit and cannot handle the increased stress, as ripple gets out of control.
↪ Notes: Qualified for 80+ Silver in testing
↪ Notes: Cybenetics Silver
↪ Notes: ODM is Dongguan Changhu Electronics Co. Ltd.
↪ Notes: 5VSB rail has >50mV of ripple under crossloads.
↪ Notes: ODM is Dongguan Changhu Electronics Co. Ltd.
↪ Notes: 5VSB has >60mV of ripple in crossloads and OCP is poorly tuned, with >50mV ripple for 5VSB and 3.3V, but these are not heavily loaded rails.
↪ Notes: 5VSB has >60mV of ripple in crossloads and OCP is poorly tuned, with high ripple for all rails.
↪ Notes: Decent electrical performance, although some components are of questionable quality.
↪ Notes: 650W is technically rated Cybenetics Silver
↪ Notes: 750W is technically rated Cybenetics Silver
↪ Notes: Pro and Pro RGB Modular are the same internally.
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: 1000W model might be DC-DC, unable to confirm without a proper teardown
↪ Notes: Double-sourced between HEC and Andyson
↪ Notes: Double-sourced between HEC and Andyson
↪ Notes: Updated M5+
↪ Notes: No transient response testing found.
↪ Notes: Sleeve bearing fan. 12V-2x6 is fixed.
Cuprum Strike (CSK) "DC"
DC-DC
XWY
A11 (HKC ATX-41B clone)
↪ Notes: DC-DC variant of the CSK Bronze; only 750W has 300W 12VHPWR.
↪ Notes: No inrush protection. Sold in the US as Earthwatts Green. 650W utilizes 105C secondary caps, 550W 85C.
↪ Notes: Also known as CSK[w]H. Not printed on the logos.
↪ Notes: X8 might be a clone of CWT's GPK platform, but is similar to the M5 platform (not very good.)
↪ Notes: X8 might be a clone of CWT's GPK platform, but is similar to the M5 platform (not very good.)
↪ Notes: Very low build quality, basically e-waste
↪ Notes: Group regulated; effective capacity is 10% lower than advertised based on +12V current rating
↪ Notes: No 12V-2x6; only one 8-pin PCIe connector.
↪ Notes: Poor 3.3V transient response, good ripple suppression.
↪ Notes: Mediocre transient response and low quality caps.
↪ Notes: 2 year warranty. PSAZ Bronze w/ARGB fan. 540W, 648W, & 744W on 12V respectively.
↪ Notes: Cost-down full input new PSAZ Bronze w/ ARGB fan.
↪ Notes: 2 year warranty. 550W: 540W on 12V, 650W: 648W on 12V, 750W: 744W on 12V.
↪ Notes: Cost-down full input new PSAZ Bronze.
↪ Notes: 2 year warranty. PSAZ Bronze w/ARGB fan. 550W: 492W, 650W: 576W on 12V.
↪ Notes: 2 year warranty. 650W: 576W on 12v.
↪ Notes: Low quality fan, 85C bulk cap.
↪ Notes: Terrible ripple suppression, especially on 12V (well over 100mV under full load), OCP is not set properly, low efficiency, low quality fan.
↪ Notes: Looks exactly the same as the regular System Power 10 internally. Unless later testing proves the above issues are not present, detier to E.
↪ Notes: Sleeve bearing fan, during OPP testing at around 30% of the 500W model do the minor rail falls out of ATX specification.
↪ Notes: Receives a "-" subtier due to its age. Only kept for legacy purposes as it is still listed on Chieftec's website.
↪ Notes: 3 year warranty; 85C bulk cap, and not one of particularly good quality, either.
↪ Notes: 3 year warranty; 85C bulk cap, and not one of particularly good quality, either.
↪ Notes: OPP is functional but offers only a 7% increase over the nominal value, beyond which the rails fall out of ATX spec for the 1000W model.